deactivate build options by default that are not supposed the be ON by default

CMakeLists.txt

@@ -187,8 +187,8 @@ OCV_OPTION(WITH_OPENGL         "Include OpenGL support"                      OFF
 OCV_OPTION(WITH_OPENNI         "Include OpenNI support"                      OFF  IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
 OCV_OPTION(WITH_OPENNI2        "Include OpenNI2 support"                     OFF  IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
 OCV_OPTION(WITH_PNG            "Include PNG support"                         ON)
-OCV_OPTION(WITH_PVAPI          "Include Prosilica GigE support"              ON   IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
-OCV_OPTION(WITH_GIGEAPI        "Include Smartek GigE support"                ON   IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
+OCV_OPTION(WITH_PVAPI          "Include Prosilica GigE support"              OFF   IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
+OCV_OPTION(WITH_GIGEAPI        "Include Smartek GigE support"                OFF   IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
 OCV_OPTION(WITH_QT             "Build with Qt Backend support"               OFF  IF (NOT ANDROID AND NOT IOS AND NOT WINRT) )
 OCV_OPTION(WITH_WIN32UI        "Build with Win32 UI Backend support"         ON   IF WIN32 AND NOT WINRT)
 OCV_OPTION(WITH_QUICKTIME      "Use QuickTime for Video I/O insted of QTKit" OFF  IF APPLE )